Question

In a certain code language, `EARTH' is written as `JFWYM'. How is `WORLD' written in that code?

• A. BTWNE
• B. BTXNE
• C. BSXNE
• D. BTWQI

Hint:

For coding-decoding, convert letters to alphabetical positions (A=1, ..., Z=26) and check for consistent shifts, accounting for wrap-around (modulo 26).

Answer 1

The Correct Option is D

To decode "WORLD", first identify the encryption method used for "EARTH" to "JFWYM".

1. Example Analysis:

- Original: E A R T H
- Encrypted: J F W Y M

2. Pattern Discovery:

Determine the alphabetical shift for each letter:

Letter	E	A	R	T	H
Alphabetical Position	5	1	18	20	8
Encrypted Letter	J	F	W	Y	M
Encrypted Position	10	6	23	25	13
Shift Value	+5	+5	+5	+5	+5

The pattern is a forward shift of 5 positions for each letter.

3. Applying Pattern to "WORLD":

Calculate the new positions for "WORLD" by adding 5, wrapping around the alphabet (26 letters) if necessary:

Letter	W	O	R	L	D
Alphabetical Position	23	15	18	12	4
Shifted Position (+5)	28	20	23	17	9
Final Position (with wrap-around)	2 (B)	20 (T)	23 (W)	17 (Q)	9 (I)

4. Derived Code for "WORLD":

The resulting encrypted word is: BTWQI

Conclusion:

The word "WORLD" is encrypted as "BTWQI" using this code.